Mixing apparatus for sugar.



No; 736,875. PATENTED AUG.'18. 1903. J. RA-GOTG: H. TOURNEUR.

MIXING APPARATUS FOR SUGAR. APPLICATION FILED JAN. 20, 1903.

no MODEL. 2 sums-452m 2.

ATTo'RNexs UNITED STATES Patented August 18, 1903.

JULES RAGOT AND HENRI TOURNEUR, OF PARIS, FRANCE.

i MIXING APPARATUS FOR SUGAR.

SPECIFIGATIONforming part of Letters Patent No. 736,875, dated August18, 1903. Application filed January 20,1903. Serial No. 189,831. (Nomodel) To all whom it may concern:

Be it known that we, JULES RAGOT and HENRI TOURNEUR, citizens of theRepublic of France, and residents of Paris, France, have inventedcertain new and useful Improvements in Mixing Apparatus, of which thefollowing is a specification.

The present invention relates to certain improvements in kneadingapparatus with exfrom which it follows that certain difficultiesare metwhen it is desired to insure the con tinuous circulation of water inthese parts. Moreover, the longitudinal pressure exercised by the massbeing treated on the coils of the coiled pipe, the number of whichincreases considerably, produces considerable friction upon theabutment-bearing and'adds greatly to the motive power required.

The improvements referred to avoid the inconveniences abovenoted. Theseimprovements include the particular construction of coiled pipesalternately of inverse threads upon parts separated from a horizontalshaft, said coiled pipes being provided on their surface with stirringarms or paddles oblique to their direction, while two consecutive partsof the horizontal shaft are connected by a particular support-piecefixed so as to serve as a support for these parts upon a correspondingbearing and so as to insure the continuous circulation of the heating orcooling liquid with which this supportis provided, whereas the entranceof this liquid occurs at will at the two farthest or nearest ends of twoneighboring pieces, thanks to an appropriate pipe system.

In orderto facilitate the understanding of the invention, we willdescribe a structure embodying a coiled pipe consisting of two parts andrefer to the annexed drawings as an example.

In the drawings, Figure 1 is a longitudinal elevation, partlyin section,of a mixing appalow shaft.

box and the end hollow shaft; Fig. 4, a sec;

tional elevation of the center hollow shaft resting on a bearing. Thisconstruction is necessary from the circumstance that the mixing-troughshown is of such a length that it is necessary to use an intermediatehearing for supporting the shaft. The cross-piece on which this hearingrests necessitates having two separate coils with differentadmissionsand exits in order to allow of the passage of the pipes, andthe result of this is that it is necessary to have in the middle of theapparatus and of the coils a second hol- Fig. 5' is a detail view of themounting on the coil of a paddle for displacing the mass.

The same letters of reference indicate the same parts in the fivefigures.

In an apparatus constructed in accordance with ourinvention themixing-trough iseither open or closed and is of any suitable form, butpreferably semicylindrical. It may either have a'double casing or not,as is required, and contains a serpentine arrangement of pipes O, whichrotates around a central shaft B and is provided at its periphery withpaddles or beaters 0', held by suitable collars O".

In this coil steam or a more or less cold fluid may be caused tocirculate, according to the object which it is desired to attain. Thecentral shaft 13 is terminated by-a hollow shaftD, on which a steam orwater distributing box E, isfitted, according as it is desired to heator cool the substance to be mixed. This box places the ends of the coilsin communication through the hollow shaft D with the admission anddischarge pipes F F and F for steam or water. If the mixing apparatus belong, it is necessary to provide a support for the shaft in the centerof the trough, and in this case the coils are separate, one beingpreferably right-handed, while the other is left-handed, and the shaftin the bracket is hollow, so as to provide a free passage for thecooling or heating fluid in the coils. Part G is prepared so as to serveto connect the two separate parts of shaft B and serves to let the wholerest on the central bearing. Moreover,

tinuous circulation of the liquid in the two,

separated parts of the coiled pipe, and, on the other hand, its directflow from one end to the other of the apparatus by means of a centralpipe 9 of an annular pipe 9, and of the pipe system F F F F 1 The steamor cooling fluid, as the case may be, traverses the apparatus in thefollowing way: It enters by one pipe, e, if the fluid employed be steam,or by another pipe,e, if water or other cooling liquid be employed.These two pipes are arranged in a distributing-box E, Figs. 1, 2, and 3,to which the steam or water is led by pipes F F. From the said box E thefluid passes into an annular space d, formed in the end hollow shaft D,Fig. 3, and connecting with a pipe f, from which branches the coilsupply-pipe F. This latter pipe conducts the fluid in the directionshown by the arrow 1 to the intermediate hollow shaft G, Figs. 1 and 4,into which it enters by junction f The fluid employed then passesthrough the annular space g in the middle shaft in order to finallyemerge by a pipe f with which is connected the second coil supply-pipe FAfter having passed through F in the direction of arrow 2 the fluid thenenters the further coil C, and it must be here pointed out that it isadvisable thus to bring the fluid employed first into thecoil farthestaway from the distributing-box, because if the fluid first traversed thenearer coil 0 it would reach the farther coil 0 after having lost mostof its particular properties. After having circulated in the farthercoil 0 the fluid escapes by a pipe F in which it travels in thedirection of arrow 3 in order to reach the pipe f 4 of the intermediatehollowshaft G. It then passes along the central passage 9 of the saidshaft in order to finally escape by a junction f from which thesupply-pipe F of the coil distributing-box, by which it originallyentered. For this object the discharge-pipe F conveys the fluid in thedirection of arrow 5 to the end hollow shaft D, into which it enters'bya junction-pipe J. The fluid having traversed the central passage d ofthis shaft finally arrives at a pipe f carried by the distributing-boxE, and is removed by an exhaust-pipe e branching from the last-namedpipe.

We declare that what we claim is- The herein described improvements inkneading apparatus with exchange of temperatures by movable surfaces,comprising the combination with a horizontal shaft B made of separatedparts supporting coiled pipes C of inverse threads with stirring.

arms 0' oblique to their direction, of a support piece G connecting twoneighboring parts of shaft B and serving to support the whole on acorresponding bearing, and of a particular pipe system F, F F F Finsuring on the one hand the entrance of the liquid at the two farthestor nearest ends of two coiled-pipe neighboring parts, and on the otherhand the continuous circulating of the liquid in these-parts by means ofthe canals f g,f ,f g ,f with which piece Gis provided, substantially asdescribed.

In testimony whereof we have hereunto set our hands in presence of twowitnesses.

JULES RAGOT. HENRI TOURNEUR. Witnesses:

JULEs FAYOLLET, EDWARD P. MACLEAN.

